CN104184523A - Voice prompting circuit used for light wave receiving - Google Patents
Voice prompting circuit used for light wave receiving Download PDFInfo
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- CN104184523A CN104184523A CN201410430567.2A CN201410430567A CN104184523A CN 104184523 A CN104184523 A CN 104184523A CN 201410430567 A CN201410430567 A CN 201410430567A CN 104184523 A CN104184523 A CN 104184523A
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- operational amplifier
- battery pack
- power amplifier
- light wave
- input end
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Abstract
The invention discloses a voice prompting circuit used for light wave receiving. The voice prompting circuit comprises a battery pack, an operational amplifier, a voice power amplifier, a loud speaker and a photodiode. The battery pack powers the operational amplifier and the voice power amplifier. The positive electrode of the photodiode is connected with the reverse input end of the operational amplifier, the negative electrode of the photodiode is connected with the forward input end of the operational amplifier, the output end of the operational amplifier is connected with the reverse input end of the operational amplifier through a feedback resistor, the output end of the operational amplifier is further connected with the negative electrode of the battery pack through a slide rheostat, the leading-out end of the slide rheostat is connected with the reverse input end of the voice power amplifier, the forward input end of the voice power amplifier is connected with the negative electrode of the battery pack and the output end of the voice power amplifier is connected with the loud speaker. The voice prompting circuit used for light wave receiving is simple, convenient to carry, low in power consumption, safe, reliable and low in cost and has good application prospects.
Description
Technical field
The present invention relates to a kind of voice warning circuit receiving for light wave, belong to electronic measuring technology field.
Background technology
Light wave receiver, for receiving lightwave signal for what test, is widely applied in geological prospecting, mine collection field, especially for the staff of underground work, it is very necessary carrying light wave receiver, when unexpected generation, facilitate the staff of underground work, find light source, so that the very first time is found outlet, but on the market, existing light wave receiver, volume is large, be not easy to carry, complex circuit designs, cost compare is high, is unfavorable for promoting the use of.
Summary of the invention
The object of the invention is to overcome existing light wave receiver, volume is large, be not easy to carry, and complex circuit designs, cost compare is high, is unfavorable for the problem of promoting the use of.The voice warning circuit receiving in light wave of the present invention, circuit is simple, and cost of manufacture is low, facilitates the personnel of underground work to carry, easy to use, has a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of voice warning circuit receiving for light wave, it is characterized in that: comprise battery pack G, operational amplifier A, phonetic speech power amplifier M, loud speaker S and photodiode D, the positive pole of described battery pack G is external operational amplifier A respectively, the positive voltage input of phonetic speech power amplifier M, the external calculation amplifier of the negative difference A of described battery pack G, the negative voltage input of phonetic speech power amplifier M, the positive pole of described photodiode D is connected with the reverse input end of operational amplifier A, the negative pole of described photodiode D is connected with the positive input of operational amplifier A, the output of described operational amplifier A is connected with the reverse input end of operational amplifier A by feedback resistance R1, the output of described operational amplifier A is also connected with the negative pole of battery pack G by slide rheostat R2, the exit of described slide rheostat R2 is connected with the reverse input end of phonetic speech power amplifier M, the positive input of described phonetic speech power amplifier M is connected with the negative pole of battery pack G, the output of described phonetic speech power amplifier M is connected with loud speaker S.
Aforesaid a kind of voice warning circuit receiving for light wave, it is characterized in that: the reverse input end of the described operational amplifier A first polar capacitor C1 that also connects, the positive pole of described the first polar capacitor C1 is connected with the positive pole of photodiode D, and described the first negative pole of polar capacitor C1 and the reverse input end of operational amplifier A are connected.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: the output of described phonetic speech power amplifier M is also in series with the second polar capacitor C2.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: the positive pole of described battery pack G is in series with K switch.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: the output voltage of described battery pack G is 12V.
Aforesaid a kind of voice warning circuit receiving for light wave, is characterized in that: described operational amplifier A is μ A741 integrated chip, described phonetic speech power amplifier M is LM386 chip.
The invention has the beneficial effects as follows: the voice warning circuit receiving for light wave of the present invention, adopts photodiode D to receive for lightwave signal, and be connected with operational amplifier, phonetic speech power amplifier, realize voice message, slide rheostat plays gain and controls, and regulates the sensitivity of photodiode D, and circuit is simple, volume is little, the personnel of being convenient to underground work carry, low in energy consumption, safe and reliable, with low cost, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the voice warning circuit receiving for light wave of the present invention.
Embodiment
Below in conjunction with Figure of description, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of voice warning circuit receiving for light wave, comprise battery pack G, operational amplifier A, phonetic speech power amplifier M, loud speaker S and photodiode D, the positive pole of battery pack G is in series with K switch, and output voltage is 12V, the positive pole of battery pack G is external operational amplifier A respectively, the positive voltage input of phonetic speech power amplifier M, the external calculation amplifier of the negative difference A of battery pack G, the negative voltage input of phonetic speech power amplifier M, operational amplifier A is μ A741 integrated chip, described phonetic speech power amplifier M is LM386 chip, operating voltage is 12V, the positive pole of photodiode D is connected with the reverse input end of operational amplifier A, the negative pole of photodiode D is connected with the positive input of operational amplifier A, the output of operational amplifier A is connected with the reverse input end of operational amplifier A by feedback resistance R1, the output of operational amplifier A is also connected with the negative pole of battery pack G by slide rheostat R2, the exit of slide rheostat R2 is connected with the reverse input end of phonetic speech power amplifier M, slide rheostat R2 can regulate the gain of operational amplifier A, to reach the sensitivity of controlling photodiode D, the positive input of phonetic speech power amplifier M is connected with the negative pole of battery pack G, the output of phonetic speech power amplifier M is connected with loud speaker S, when photodiode D acceptance point lightwave signal, after amplifying by operational amplifier A, drive phonetic speech power amplifier M work, phonetic speech power amplifier M drives loud speaker S to send voice prompt, near reminding staff, there is light source, circuit is simple, volume is little, the personnel of being convenient to underground work carry, low in energy consumption, safe and reliable, with low cost.
The reverse input end of the described operational amplifier A first polar capacitor C1 that also connects, the positive pole of the first polar capacitor C1 is connected with the positive pole of photodiode D, the first negative pole of polar capacitor C1 and the reverse input end of operational amplifier A are connected, the output of phonetic speech power amplifier M is also in series with the second polar capacitor C2, the first polar capacitor C1, the second polar capacitor C2, interference that can elimination external environment condition, prevents voice warning circuit misoperation, improves the reliability of circuit.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. the voice warning circuit receiving for light wave, it is characterized in that: comprise battery pack G, operational amplifier A, phonetic speech power amplifier M, loud speaker S and photodiode D, the positive pole of described battery pack G is external operational amplifier A respectively, the positive voltage input of phonetic speech power amplifier M, the external calculation amplifier of the negative difference A of described battery pack G, the negative voltage input of phonetic speech power amplifier M, the positive pole of described photodiode D is connected with the reverse input end of operational amplifier A, the negative pole of described photodiode D is connected with the positive input of operational amplifier A, the output of described operational amplifier A is connected with the reverse input end of operational amplifier A by feedback resistance R1, the output of described operational amplifier A is also connected with the negative pole of battery pack G by slide rheostat R2, the exit of described slide rheostat R2 is connected with the reverse input end of phonetic speech power amplifier M, the positive input of described phonetic speech power amplifier M is connected with the negative pole of battery pack G, the output of described phonetic speech power amplifier M is connected with loud speaker S.
2. a kind of voice warning circuit receiving for light wave according to claim 1, it is characterized in that: the reverse input end of the described operational amplifier A first polar capacitor C1 that also connects, the positive pole of described the first polar capacitor C1 is connected with the positive pole of photodiode D, and described the first negative pole of polar capacitor C1 and the reverse input end of operational amplifier A are connected.
3. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: the output of described phonetic speech power amplifier M is also in series with the second polar capacitor C2.
4. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: the positive pole of described battery pack G is in series with K switch.
5. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: the output voltage of described battery pack G is 12V.
6. a kind of voice warning circuit receiving for light wave according to claim 1, is characterized in that: described operational amplifier A is μ A741 integrated chip, and described phonetic speech power amplifier M is LM386 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430567.2A CN104184523A (en) | 2014-08-26 | 2014-08-26 | Voice prompting circuit used for light wave receiving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430567.2A CN104184523A (en) | 2014-08-26 | 2014-08-26 | Voice prompting circuit used for light wave receiving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104184523A true CN104184523A (en) | 2014-12-03 |
Family
ID=51965301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430567.2A Pending CN104184523A (en) | 2014-08-26 | 2014-08-26 | Voice prompting circuit used for light wave receiving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104184523A (en) |
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2014
- 2014-08-26 CN CN201410430567.2A patent/CN104184523A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |